'Pure tones' presentation slideshows

Audiometer Verification and Calibration

Audiometer Verification and Calibration. Biologic Listening Checks. When should you do this? Before using new equipment Daily or some other regular interval Why should you do this? To detect problems prior to obtaining clinical data To monitor the status of your equipment. Preparation.

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Topic 3

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Lecture 9

Lecture 9. Perception of combination tones Modes of hearing Consonance & dissonance Theories of pitch perception. Instructor: David Kirkby (dkirkby@uci.edu). Miscellaneous. Pick up Problem Set #3 today. The average was 66%.

535 views • 39 slides

Pure Tones and the Sine Wave

Pure Tones and the Sine Wave. Physics of Music PHY103 Lecture 2. Image from www.math.ucdavis.edu/~angela/mathC.html. Trig definition of a sine wave. Period or wavelength. amplitude. From math learning service U. Adelaide. Harmonic motion. From ecommons.uwinnipeg.ca/ archive/00000030/.

1.56k views • 34 slides

Hearing & Deafness (3)

Hearing & Deafness (3). Auditory Localisation http://www.aip.org/pt/nov99/locsound.html. Demo class. 1pm this Thursday 27th Chichester LT Going through Frequencies, Filters, Excitation patterns etc Using Excel spreadsheet that you can download. Localisation in 3 dimensions.

487 views • 29 slides

Computer Science 121

Scientific Computing Winter 2012 Chapter 13 Sounds and Signals. Computer Science 121. Background: Sounds and Signals. Recall transducer view of computer: convert input signal into numbers. Signal: a quantity that changes over time Body temperature Air pressure (sound)

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Frequency Analysis in the Cochlea and Auditory Nerve cont'd The Perception of Frequency

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Spectral centroid

Spectral centroid . 6 harmonics: f0 = 100Hz E.g. 1: Amplitudes: 6; 5.75; 4; 3.2; 2; 1 [(100*6)+(200*5.75)+(300*4)+(400*3.2)+(500*2)+(600*1)] / 21.95 = 265.6Hz E.g. 2: Amplitudes 1; 2; 6; 5.75; 4; 3.2 [(100*1)+(200*2)+(300*6)+(400*5.75)+(500*4)+(600*3.2)] / 21.95 = 301.86Hz. Masking.

602 views • 24 slides

Frequency selectivity of the auditory system

Frequency selectivity of the auditory system. Frequency selectivity. Important for aspects of auditory perception such as, pitch, loudness, timbre, melody, harmony, consonance and dissonance.

433 views • 23 slides

MASKING

MASKING. BASIC PRINCIPLES CLINICAL APPROACHES. Masking = Preventing Crossover. Given enough intensity any transducer can stimulate the opposite cochlea Enough intensity to cross over = _________. Therefore some unmasked thresholds will be suspect and require masking.

559 views • 22 slides

MASKING

MASKING. BASIC PRINCIPLES CLINICAL APPROACHES. Masking = Preventing Crossover. Given enough intensity any transducer can stimulate the opposite cochlea Enough intensity to cross over = _________. Therefore some unmasked thresholds will be suspect and require masking.

1.12k views • 22 slides

Early German Psychologists

392 views • 22 slides

Hearing loss and audiograms

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Sound waves cont'd

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Purpose

Output unit. AN. Weights. IN n. IN n+1. IN n. IN n+1. IN n+1. IN n. IN n. IN n+1. IN n+1. IN n+1. Input units. t-?. t-?. t. Figure 4. Generation of STRFs through ripples. Methods Neural network

143 views • 1 slides